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OBC Question

Printed From: Bavarian-Board.co.uk - BMW Owners Discussion Forum
Category: Technical & Model Specific Forums
Forum Name: BMW 3 Series
Forum Discription: This forum will deal with any issues on the BMW 3 Series (E21, E30, E36, E46, E90, E91 & E92)
URL: http://www.bavarian-board.co.uk/forum_posts.asp?TID=8899
Printed Date: 08-May-2024 at 06:01


Topic: OBC Question
Posted By: Pegsta
Subject: OBC Question
Date Posted: 06-July-2004 at 17:11

I've read somewhere (probably somewhere on this forum) that there is an option on the OBC to periodically run the air fans in the car to keep it a little cooler on hot days.  Anyone know if this is true and if so what do you have to do to set it?

Cheers

Gareth



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1998 Boston Green 328i SE
Chipped by ChippedUK




Replies:
Posted By: Danny_boy
Date Posted: 08-July-2004 at 08:17

Hi mate,

It is true - it's done via the Timer button but I haven't used it myself. Your manual should tell you how to set it - if you have lost it I can scan you the relevant pages out of mine.

I bet you'd like to know how to set your OBC to read actuall running speed too huh

Dan



Posted By: Pegsta
Date Posted: 08-July-2004 at 11:36

I'd appreciate that if you could scan those pages for me!! I don't have the manual - didn't get it with the car when I bought it.

Wouldn't mind knowing about the actual running speed as well..

Cheers

Gareth



-------------
1998 Boston Green 328i SE
Chipped by ChippedUK



Posted By: Danny_boy
Date Posted: 08-July-2004 at 18:37

Hi mate,

My scanner is bost unfortunately, so I am going to type out the entire section for you - here goes...............

Independant ventilation control (input of switching times) - You can preselect two switch-on times for the independant vetilation control. The ventilation is switched off automatically after 30 minutes. When the timer button is pressed, the display shows the current operating condition of the IVC.

Input of first switch on time - input is possible only if the digital clock is running and the ignition key is in position 1. Press the timer button twice and then set the required time by using the number buttons. Then press set/res. (To input a second switch on time, repeat the above).

Correcting the time input - Press the keys in the order described above including the different time input. After the input, the display shows "*" and the LED comes on as a sign that a switch on time has been preselected. The LED on the timer button flashes while the heating or ventilation is actually in operation, and goes out when they are switched off. 

To check a previous switch-on time input (LED is on) - Press timer twice for the first time input, and 3 times for the secondary time input.

Hope that helps mate - let us know if it works.

With regard to the actual speed reading on the OBC, the instructions are set out below....................

1. press 1000 and 10 keys together - should see Test-Nr
2. Enter 19 .ie. 10 once and 1 nine times.
3. press set and the display should read LOCK: ON
4. Then enter an unlocking code which consists of the sum of the current month and date. ie. July 11 would be 18.
5. Press set and you're done

Now the obc  is unlocked

1. press 1000 and 10 keys together again
2. Enter 08 .ie. 1 eight times.
3. press set and check to exit.

your speed button should now show your instantaneous speed - but only in kmh unfortunately.

Dan



Posted By: EvoDude
Date Posted: 08-July-2004 at 23:27

Chaps, have not heard of unlocking the OBC...do you know if it does anything else?

Neil



-------------
E36 ///M3 Evo - Dyno'd at 323.3 Bhp
Modded. Mint.



Posted By: dave 328
Date Posted: 09-July-2004 at 11:44
What does this do? Does it switch the ventilation on and off?

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328 Coupe Sport, Digital climate, full leather, OBD computer, De-restricted with M50 manifold, big bore throttle, chippeduk remap, custom cold cone intake and X-brace


Posted By: Pegsta
Date Posted: 09-July-2004 at 12:50

Cheers for that Dan!

I'll probably set it to run the fans for half an hour before I leave work so the car should be a little cooler by the time I come to it.

Gareth 



-------------
1998 Boston Green 328i SE
Chipped by ChippedUK



Posted By: sleeper
Date Posted: 09-July-2004 at 15:29
I want OBC!!!

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Posted By: EvoDude
Date Posted: 09-July-2004 at 16:03

Dave, if your talking about the timer then yes..runs the interior fan for 30mins after you set the 'ON' time. Ive unlocked my OBC now but haven't noticed any difference.

Neil



-------------
E36 ///M3 Evo - Dyno'd at 323.3 Bhp
Modded. Mint.



Posted By: Danny_boy
Date Posted: 09-July-2004 at 18:10

You boys want to have a look at this.................

http://home.att.net/~ebaines/e36_obc.htm - http://home.att.net/~ebaines/e36_obc.htm

There's loads you can do.

Dan



Posted By: EvoDude
Date Posted: 11-July-2004 at 23:49
Tried it.... hours of fun!

-------------
E36 ///M3 Evo - Dyno'd at 323.3 Bhp
Modded. Mint.



Posted By: Danny_boy
Date Posted: 12-July-2004 at 18:08

Good innit

Dan



Posted By: EvoDude
Date Posted: 12-July-2004 at 18:51
One thing, I got the OBC to do its other tests/readouts but couldn't get the dash /odometer to do its things. Like it says, I hold down the reset button and turn ignition to setting 2, but it doesn't say 'Test 1' or anything...it just reels off the random numbers where the odo is then thats it. Can't get it to do the tests...have I done it wrong?? 

-------------
E36 ///M3 Evo - Dyno'd at 323.3 Bhp
Modded. Mint.



Posted By: dave 328
Date Posted: 13-July-2004 at 14:57
So if you put the interior fans on timer, wouldn't this set the alarm off by the ultra sonics detecting movement?

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328 Coupe Sport, Digital climate, full leather, OBD computer, De-restricted with M50 manifold, big bore throttle, chippeduk remap, custom cold cone intake and X-brace



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